Questions on Infill & bridging
Posted: Thu Feb 27, 2014 10:12 am
So I'm primarily printing with PLA, due to the higher quality look & feel that I've been experiencing with it.
Am running an Orion Delta....
My biggest current issue seems to be with infill unhappiness..
Let's say I'm printing a 2" cylinder, that's 4" tall, and at the top of it has a flat/solid cover.
So this would call for either:
1- a bridge build/support build all the way up the center
2 a change in CAD design to convert the flat cover to an arch cover so it can build by layers
3. making it completely solid.
My approach to this has been (generally) to just make it a 50% solid infill.. Yes I'm using a ton of material. And that's becoming a time issue as well.. so I need to change..
But I'm having a tremendous issue iwht building bridge & support material...
Two problems seem to be surfacing:
Some other factors... I'm needing significant product strength, hence the .8 fill density. one of my prototypes ( a cylinder being used in a torque application) has .150" thick walls and is 4.5" tall - and has to be able to take a significant amount of torque action across its length.. so i have to have nearly solid walls.. but i really need to build it with a hollow center....
Here are some quick screenshots of my slic3r config for a typical setup....
Recommendations?
Am running an Orion Delta....
My biggest current issue seems to be with infill unhappiness..
Let's say I'm printing a 2" cylinder, that's 4" tall, and at the top of it has a flat/solid cover.
So this would call for either:
1- a bridge build/support build all the way up the center
2 a change in CAD design to convert the flat cover to an arch cover so it can build by layers
3. making it completely solid.
My approach to this has been (generally) to just make it a 50% solid infill.. Yes I'm using a ton of material. And that's becoming a time issue as well.. so I need to change..
But I'm having a tremendous issue iwht building bridge & support material...
Two problems seem to be surfacing:
- 1. the infill lines don't seem to connect with perimeters when being dragged across open centers.. so they begin to pile up and get caught on the head.. that gets ugly...
2. IF it does actually build out (usually it fails due to vast pile up of these globs, and they become little 'spider piles" on the bed), the top is quite squishy
Some other factors... I'm needing significant product strength, hence the .8 fill density. one of my prototypes ( a cylinder being used in a torque application) has .150" thick walls and is 4.5" tall - and has to be able to take a significant amount of torque action across its length.. so i have to have nearly solid walls.. but i really need to build it with a hollow center....
Here are some quick screenshots of my slic3r config for a typical setup....
Recommendations?